1 // SPDX-License-Identifier: GPL-2.0
38 			"/something-non-existent-with-a-long-name-%64lu-%d",  in alloc_dcache()
105 	int ret = -1;  in alloc_kmem_smp()
109 		return -1;  in alloc_kmem_smp()
115 			return -1;  in alloc_kmem_smp()
129 static int cg_run_in_subcgroups(const char *parent,  in cg_run_in_subcgroups()  argument
133 	char *child;  in cg_run_in_subcgroups()  local
137 		child = cg_name_indexed(parent, "child", i);  in cg_run_in_subcgroups()
138 		if (!child)  in cg_run_in_subcgroups()
139 			return -1;  in cg_run_in_subcgroups()
141 		if (cg_create(child)) {  in cg_run_in_subcgroups()
142 			cg_destroy(child);  in cg_run_in_subcgroups()
143 			free(child);  in cg_run_in_subcgroups()
144 			return -1;  in cg_run_in_subcgroups()
147 		if (cg_run(child, fn, NULL)) {  in cg_run_in_subcgroups()
148 			cg_destroy(child);  in cg_run_in_subcgroups()
149 			free(child);  in cg_run_in_subcgroups()
150 			return -1;  in cg_run_in_subcgroups()
153 		cg_destroy(child);  in cg_run_in_subcgroups()
154 		free(child);  in cg_run_in_subcgroups()
163  * threads. Then it checks the sanity of numbers on the parent level:
171 	char *parent;  in test_kmem_memcg_deletion()  local
173 	parent = cg_name(root, "kmem_memcg_deletion_test");  in test_kmem_memcg_deletion()
174 	if (!parent)  in test_kmem_memcg_deletion()
177 	if (cg_create(parent))  in test_kmem_memcg_deletion()
180 	if (cg_write(parent, "cgroup.subtree_control", "+memory"))  in test_kmem_memcg_deletion()
183 	if (cg_run_in_subcgroups(parent, alloc_kmem_smp, NULL, 100))  in test_kmem_memcg_deletion()
186 	current = cg_read_long(parent, "memory.current");  in test_kmem_memcg_deletion()
187 	anon = cg_read_key_long(parent, "memory.stat", "anon ");  in test_kmem_memcg_deletion()
188 	file = cg_read_key_long(parent, "memory.stat", "file ");  in test_kmem_memcg_deletion()
189 	kernel = cg_read_key_long(parent, "memory.stat", "kernel ");  in test_kmem_memcg_deletion()
190 	sock = cg_read_key_long(parent, "memory.stat", "sock ");  in test_kmem_memcg_deletion()
195 	if (abs(sum - current) < MAX_VMSTAT_ERROR) {  in test_kmem_memcg_deletion()
207 	cg_destroy(parent);  in test_kmem_memcg_deletion()
208 	free(parent);  in test_kmem_memcg_deletion()
251 	int ret = -1;  in spawn_1000_threads()
255 		return -1;  in spawn_1000_threads()
261 			return(-1);  in spawn_1000_threads()
301  * This test sequentionally creates 30 child cgroups, allocates some
303  * that the number of dying cgroups on the parent level is 0.
308 	char *parent;  in test_kmem_dead_cgroups()  local
312 	parent = cg_name(root, "kmem_dead_cgroups_test");  in test_kmem_dead_cgroups()
313 	if (!parent)  in test_kmem_dead_cgroups()
316 	if (cg_create(parent))  in test_kmem_dead_cgroups()
319 	if (cg_write(parent, "cgroup.subtree_control", "+memory"))  in test_kmem_dead_cgroups()
322 	if (cg_run_in_subcgroups(parent, alloc_dcache, (void *)100, 30))  in test_kmem_dead_cgroups()
326 		dead = cg_read_key_long(parent, "cgroup.stat",  in test_kmem_dead_cgroups()
340 	cg_destroy(parent);  in test_kmem_dead_cgroups()
341 	free(parent);  in test_kmem_dead_cgroups()
347  * This test creates a sub-tree with 1000 memory cgroups.
348  * Then it checks that the memory.current on the parent level
355 	char *parent, *child;  in test_percpu_basic()  local
359 	parent = cg_name(root, "percpu_basic_test");  in test_percpu_basic()
360 	if (!parent)  in test_percpu_basic()
363 	if (cg_create(parent))  in test_percpu_basic()
366 	if (cg_write(parent, "cgroup.subtree_control", "+memory"))  in test_percpu_basic()
370 		child = cg_name_indexed(parent, "child", i);  in test_percpu_basic()
371 		if (!child)  in test_percpu_basic()
372 			return -1;  in test_percpu_basic()
374 		if (cg_create(child))  in test_percpu_basic()
377 		free(child);  in test_percpu_basic()
380 	current = cg_read_long(parent, "memory.current");  in test_percpu_basic()
381 	percpu = cg_read_key_long(parent, "memory.stat", "percpu ");  in test_percpu_basic()
383 	if (current > 0 && percpu > 0 && abs(current - percpu) <  in test_percpu_basic()
392 		child = cg_name_indexed(parent, "child", i);  in test_percpu_basic()
393 		cg_destroy(child);  in test_percpu_basic()
394 		free(child);  in test_percpu_basic()
398 	cg_destroy(parent);  in test_percpu_basic()
399 	free(parent);  in test_percpu_basic()